Error message on log

Hello,

I have 3 types of messages in webiserver log, and I don't find any information about them. (and I don't understand them)

If anybody has an idea....

Plateform

- Plateform BI 4.0 SP 6

- Windows 2008 R2 std

- Windows 2008 Express for repository

Error message :
-  Text: **ERROR:C3_PROPERTIES:Unable to read key  : CurrentDate [kc3Properties.cpp;1553]
-  Text: Error! repoAccess.getUniverseInfo() : [repo_proxy 36] UniverseFacade::getUniverseInfo - ISInfoObject has not been found
-  Text: **ERROR:C3_Dictionary:(A) AMBIGUOUS ITEM (false) : ; Name already used:"Date Fin"; key:LEE; [kc3Dictionnary.cpp;385]

Thanks by advance,

Odile